RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E106 OP E106 DO 10.3174/ajnr.A5778 VO 39 IS 10 A1 A.M. Tawfik A1 D.M. Sobh A1 N.M. Batouty YR 2018 UL http://www.ajnr.org/content/39/10/E106.abstract AB